Apparatus for casting interlocking rings



Aug. 18, 1936. M. RICH APPARATUS PQR CASTING INTERLOCKING RINGS 2 Sheets-Sheet 1 Filed Dec. 2, 1935 Maurice Rich Aug. 18, 1936. M. RlcH APPARATUS FOR CASTIN INTERLOCKING RINGS Filed Deo. 2, 1955 v 2 Sheets-Sheet 2 um um Patented Aug. 18, 1936 UNITED STATES g actress APPARATUS FOR CASTINGINTERLOCKING l. RINGS kMaurice Rich, New York, N. Y. Appiicationnecember 2, 1935, serial No-5a547 2 Claims.

useful imcasting interlocking This invention relates to new and provements in apparatus for rings. A

The invention has for anrobject the construc- B' tion-of dies which are capable of casting interlockingrings in one or two operations thereof.

More particularly, with reference to the die for casting the interlocking Vrings in two operations, it is proposed that in the first operation spaced rings be cast, and in the second operation other spaced rings be cast through the first-mentioned group of rings. y

In the form of one invention in which the interlocking rings are to cast in one operation, it is proposed that therings be simultaneously cast in interlocking relation to each other. Another object of the invention is the construction of Va device as mentioned which is simple and durable and whichcan be manufactured and sold at a reasonable cost.

For further comprehension of the invention, I and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a ma-V terial part of this disclosure;-

Fig. 1 is a perspective view of a die constructed 30g; according to this invention.

of the die shown in Fig. 1.

Fig. 3 is a perspective view of Fig. 2 illustrated with the elements of the die sections shown in Fig. 2 separated. Y

Fig. 4 is a horizontal sectional view taken on the line 4 4 of Fig. 2. H

Fig. 5 is an elevational view of the firstgroup of spaced rings cast by the dies.

Fig. 6 is an elevational view of the first and second groups of rings interlocked with each other.

asf-

Fig. 7 is an elevational view of the rings .shown` in Fig. 6 separated from the casting body.Y

Fig. 8 is a perspective view of a die constructed according to a modification of the invention.

Fig. 9 is a plan view of Fig. 8 with a top portion thereof broken away.

Fig. 10 is a fragmentary enlarged sectional view on the line' Ill-IU of Fig. 9.

Fig. 11 is'a perspective View of the die shown in Fig. 8 With elements thereof separated.

Fig. 12 is avfragmentary enlarged detailed View of one of the elements of the die shown in Fig. 11. 55 The die for casting interlocking rings, accord- Fig. 2 is an elevational View of the rear section ing to this invention, comprises a front section I0 consistingofan upper .element IFJa in edge contact with a lower Aelement Illb,'and a rear section H 'consistingof anu'pper element IIa in edge contact witha lower element I Ib. The 5 upper and lower elements are respectively in edge contact with each other. There -are ring shaped passages I2 in the adjacent faces of the sections I Il and Il, and having *portions I 2a and IZb'thereof in the upper and lower elements of l0 said sections. These passages are connected'by passages I3 for the supply of metal thereto. Y The passages I3 are connectedV together and terminate. in an opening I3a in the edge of the die sections.

Ring shaped passages I 4 are formed in the con- 15v tacting ends of theupper and lower elements Illa, IIa and I0", Ilb and are arranged with 'portions thereonin adjacent Sections. At one side ther are passages I4a which connect with thepassages I4 through -Whichspaced rings, held by 20 metal which'flowthroughv the passages I3, may engage. The upper and lower elements of the sections are held in relatively adjusted positions by studs` I6 which are attached to one of the elements and -slidably engage through openings25 in the other tof the-elements andwhave theirextended ends formed with headsV I1 to limit the relative motionrof the parts. 1

One ofthe sections, .namely the section I0 is provided with a stud I 'l' by which it may be 30 gripped whenever desired. The method of making the rings, according to this form of the invention is as followsz-Molten metal is poured through the opening I3=1vwhen the die is in the closed position, as'illustrated in Fig. 1, to form the 35 casting shown in Fig. 5. This casting comprises spaced rings I2 which are heldtogether as a unit by arms I3 formed by the metal engaging in the passages I3and I3?. jThiscastingwhen removed from the die, is placed horizontally be- 40 tween therupper and lower elements. This is possible by kfirst separating thek upper andvlower elements as shown in Fig..3.` -g f The rings I2 should t vright into the passages I4 and the arms I3 should extend-.out from the 45 passages Ida. `The die is then closed and moltenV metal Vis poured through the opening I3a which now forms a second-casting identical tothe casting shown in Fig. 5, except for the factthatoits rings I2 are threaded through the rings I2 of 50 the first casting. When the casting is now Withdrawn from the mold it shown'in Fig. 6. v Y Y The dot and dash lines' invFig.' 4, illustrate the manner in which the arms I3 extend from the 55 will lloe in the condition Cil side of the die. 'I'he arms I3 are then broken ofi from the rings and the finished interlocking ring chain shown in Fig. '7 is produced.

In Figs. 8-12, inclusive, another method and die is shown for casting the interlocking rings in one operation. According to this form of the invention there is a base 20 upon which there is xedly mounted a die section 2| which is adapted to coact with several movable die sections 22, 23 and 24. The base 2D consists of a pair of superimposed plates 2|)a and 20b held together in proper alignment by studs 25 from one of the sections engaging in apertures in the other. The fixed vertical section 2l is merely fixedly attache-d at its bottom end on the plate 20a.

The movable sections 24 have headed studs 26 projecting from their bottom ends and engaging in bayonet slots 21 formed in the top base section 20a. These bayonet slots each comprise a circumferential portion joining with a radial portion so as to form an L-shape. This is very clearly shown in Fig. 9. The L-shapes are disposed with the radial arms extending outwards.

A disc 28 is rotative within a cavity 29 betweenY the sections 20 and 20h. This disc has several radial ribs 30 adapted to engage the headed studs 26 to force them into the ends of the bayonet slots for locking the vertical sections 22, 23 and 24 into closed positions.

The disc 28 has peripheral teeth which mesh with the teeth on a gear 25 rotatively mounted and coaxially connected with a bevel gear 29', in turn meshing with a bevel gear 3 l'on a stem 32 extending to the exterior of the base.

A handle 33 is xed on the stem 32 by which it may be turned. This arrangement permits the hea-ded studs of the vertical sections to be latched in the closed positions of the sections or moved so that the sections are slightly separated. In Fig. 8 the full lines indicate the vertical sections closed, while the dot and dash lines indicate the separated positions of the three movable sections. In Fig. 1l a fragmentary view is shown to illustrate the manner in which two of the movable sections are spaced from the stationary section in the open condition of the die.

The contacting faces of the sections are formed with passages adapted to form the interlocking rings. More particularly, section 2| has a passage 35 connecting with passages 36 for formingV half rings which are straddled from other rings 31 in Walls which are at right angles to the half rings 36. These latter passages 31 connect with passages 38 which extend upwards and join with the passages 35 in an opening 39. The half rings 31 of each of the sections are adapted to align with the half rings of the adjacent sections in such a manner that the interengaging rings are formed when metal is poured into the die. This may be very clearly understood by examining Fig. 11 and noting the manner in which the half ring passages are adapted to align with each other when the vertical sections are moved closed. It will thus be seen that with one pouring operating through the opening 39 the interlocking rings are formed. When the casting is removed from the die, it is necessary that the metal formed in theY passages 35, 38, and 39 be broken free from the rings.

It is to be understood that the interlocking links cast by this arrangement may be of white metal or any other pourable metal or plastic material, also that the links may be of any desired size and ornamentation.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is;-

1. A die for casting interlocking rings, comprising a base having a hollow interior and inclu-ding a pair of superimposed top and bottom plates, said top plate having L-shaped bayonet slots one of the arms of which are on the circumference of a circle and the other arms of which extend radially therefrom, a vertical section mounted on said base, three vertical sections adjustably mounted on said base and movable into contact with each other, and with said stationary vertical section, and said sections having their faces in planes at right angles, said section having ring shaped passages in the faces on one of said planes and also having other ring shaped passages in the faces of the other of said planes and spaced and interlocked with said first ring shaped passages, and means for releasably holding said movably mounted sections on said base, comprising a disc having peripheral teeth and mounted within said hollow interior, headed studs mounted on the ends of said movable sections and engaging through said slots and adapted to abut the top surface of said disc, and radial ribs on said disc adapted to force said studs into the ends of said arms on the circumference of a circle to hold said sections in their closed'position so that said chain may be cast, and a means for rotating said disc to release said studs so that said sections may be moved apart to all-ow said chain to be removed after being cast.

.2.l A die for casting interlocking rings, comprising a base having a hollow interior and including a pair of superimposed top and bottom plates said top plate having bayonet slots and one of the arms of which are -on a circumference of a circle and another arm at right angles to said arm and extending radially therefrom, a vertical section mounted onV said base, three vertical sections adjustably mounted on said base and movable into contact with each otherY and with said stationary vertical section, andsaid sections having their faces in planes at right angles, said section having ring shaped passages in the faces on one of said planes and also having other ring shaped passages in the faces of the other of said planes and spaced and interlocking with said first ring shaped passages, and means for releasably holding said movably mounted sections on said base, comprising a disc having peripheral teeth and mounted within said hollow interior, headed studs mounted on the ends of said movable sections and engaging through said slots and adapted to abut the top surface of said disc, and radial ribs on said disc adapted to force said studs into the ends of said arms on the circumference of the circle to hold said sections in their closed position so that said chain may be cast,Y and means for rotating said disc to release sai-d studs so that said sections may be manually moved apart to allow said chain to be removed after being cast.

MAURICE RICH. 

